Home / 280,669,488.75-387,280,865.37-161,569,059.03

Finding the Fourth Proportional to 280,669,488.75, 387,280,865.37 and 161,569,059.03

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Solution

The fourth proportional to 280,669,488.75, 387,280,865.37 and 161,569,059.03 is: 222,940,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,669,488.75 : 387,280,865.37 = 161,569,059.03 : x
  2. Step 2: Convert to fraction form
    280,669,488.75/387,280,865.37 = 161,569,059.03/x
  3. Step 3: Cross multiply
    280,669,488.75x = 387,280,865.37 × 161,569,059.03
  4. Step 4: Simplify right side
    280,669,488.75x = 62,572,604,998,155,016
  5. Step 5: Solve for x
    x = 62,572,604,998,155,016/280,669,488.75
  6. Step 6: Final answer
    x = 222,940,531.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.